Utah Administrative Code (Current through November 1, 2019) |
R307. Environmental Quality, Air Quality |
R307-207. Residential Fireplaces and Solid Fuel Burning Devices |
R307-207-3. Opacity for Residential Heating
Latest version.
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Visible emissions from residential solid fuel burning devices and fireplaces shall be limited to a shade or density no darker than 20% opacity as measured by EPA Method 9, except for the following:
(1) An initial fifteen minute start-up period, and
(2) A period of fifteen minutes in any three-hour period in which emissions may exceed the 20% opacity limitation for refueling.